Time locks



2 Sheets-Sheen 1.

y Patented Aug. 2841883.,

N PETER?. Pnawuxhognphnr. vlamingen. D. C.

NEWBURY MODE 0F MOUNTING TIME LOCKS.

lill V(No Model.)

(No Model.) 2 Sheets-Sheet 2.

Y H. F. N'EWBURY MODE MOUNTING TIME LOCKS'.

N0.284,142. Y Patented Aug.`28,183.

` fig-f5 ji l UNITED 4STATnS PATENT FFICE HENRY F. NEWBURY, on BRooKLYN, `New tYORK.

`sriazcrrrca'rrotr formingypart of Lettersratent NQ. 284,142, dated August 2s, ieeei Application filed August 31, 1882. (No model.) Patented in England 'August Q, 1882, No. 3,683, and in Canada August 19, 1882,

` No. 15,309. f

new and useful Improvements in the Mode of `Mounting;Time-Locks; andI do hereby de-1 clare that the following is a full, clear,and ex-1 act description of my invention, and will enable others skilled in the art to which it appertains f mostl easily broken, this being the case esto make and use the same. i

A chronometric or time lock, as theterm is understood in the art of safe and 'vault prof tection, is a lockwhose bolt or checking de-1 vice (sometimes technically called dog) is, for the purpose of unlocking at least, under U the control of a timemovement,capable of` l withdrawing it automatically, or of permitting it tobe withdrawn from the lockingfposition` upon the arrival of the hour for which the mechanism has previously been set. By prac-1 ingsuch locks upon the interior of the struc! tures to be protected, and without mechanical `connection with` the exterior thereof, it'las' been supposed that an emcient securityis provided against what are known as masked burglaries, and that thus locks of this class i afford complete protection against the operan4 tions o f the burglar, except when he resorts to violence, calculated to force the walls of the safe or vault.` The ordinary mode of mount-` ing suchlocks has been to bolt them directly` and rigidly to the door or wall of the safe. I

e n have discovered that when they are thus mounted the security afforded is apparent only, and that any of the time-locks now upon the market can be defeated by the burglar without diffe` culty, and without resort to force to break or` penetrate the walls of the structure in which` y the lock is used. From this `it results that 4,0 bination-lock has its security increased butI practicallya safeor vault guarded by a com1 isting chronometric locks asheretofore mount-l ed arises from the frangible character of ceri y tainparts of the` time -movement, whichin n n n 50,

allne work are `made so slight and delicate a'sto be broken readily by a sudden shock,

l such as might be communicated to them through the walls of the safe or vault by the explosion of a small charge of dynamite, nitro-glycerine, or other quick explosive outside the walls of the structure but in proximityto that part of the walls against which the lock is secured. The parts of `a timemovement' which are the farthest removed from the main' wheel are the most delicate, and thereforethe eled movements, also,are especially exposed to injuryinthe mannerindicated,sincethejewels, by reason of their brittleness, might easily be broken by the force of an explosion of great intensityin close proximity to them. The de struction of any of the parts intermediate between the balance-wheel and the main wheel at once releases the main wheel from 'the con trol of the escapement, and the movement immediately begins to run down, a movement which otherwise would continue to run for several dayswithout rewinding, now running down almost instantly. As the dial or other devicearranged to actupon the lockbolt or dog to withdraw it or `permit it to move from 'the locking position is actuated from the same spring that drives the main wheel, its speed will be correspondingly accelerated, so vthat Vthe dog, instead of being withdrawn from en.`

gagement with the bolt-work of the door at the regular hour for which the lock has been` set, will be withdrawn immediately upon the ex- The jerties of themovement. Time-locks with jewplosion or other shock, leaving the safe or I vault, so far as the time-lock is concerned, en-

tirely under thecontrolof the burglar." If

there are other locks on the door, (either combination or key locks,)` the burglar will proba- Ioo bly have effected the unlocking of them in advault of the time-lock in the manner indicated (and repeated experiments show that this can be readily done with a charge of dynamite so small as to make but little noise, and not even indent or otherwise appr'eciably affect the walls of the safe) removes all obstructions to free access to the valuables placed under the protection of such lock.

The present invention seeks to overcome this difficulty connected with the use' of existing time-locks as heretofore mounted; and it consists', primarily, in mounting the lock in such way that it will be isolated or removed from those parts of the door. or wall of the safe or vault which a burglar would be likely to attack in the manner indicated, and thereby protected against any destructive shock arising from such source.

, Various methods may be adopted for isolating the lock for the purpose above set forth.

For instance, in the case of a vault it may be mounted on a solid standard rising from the bottom of the structure. So, also, if the vault or safe have double doors, the lock which is used to guard the bolt-work of the outer door may be attached to the face of the inner door, with such space between it and the outer door that the lock will not be affected by any vibrations imparted to the latter by a shock less than what would be necessary to set the doorb'olts. So, again, instead of placing the lock upon a iixed standard, or upon an inner dor, it may be secured to a bar spanning the space behindthe door, and arranged to support the lock at the required distance from such door.

The invention is illustrated in the accompanying drawings, in which Figures 1 and 2 show in elevation and plan, respectively, a well-known Holmes time-lock, A, secured to the inner door, B, of a safe or vault, and guarding the door-boltsof the outer door, C.

It will be seen by reference to Fig. 2 that there is a space left between the front of the lock and the outer door, so that the latter will vbe capable of considerable inward movement without being brought into contact with the lock.- As here mounted the angle-lever ,or

jaw I),- which, together with'the tie-bar E,

forms the connection between the sliding lock- I I are the ordinary bolt-bars, in which the-` bolts G G have their bearing.

J is the spindle for operating the door-bolts.

As seen in Fig.'1, the lock, bolts, Ste., are shown in dotted lines, since they are represented `asbeing behind the other door. The

construction of the time-lock itself 'is not shown in detail, .being well known, and because, also, the present invention is not limited as regards the particular kind of timelock to which this mode of mounting is to be applied. y

Figs. 3 and 4 show a lock mounted .upon a hinged metal bar, K, Fig. 4 showing in-plan the position of such lock and bar relatively to the door of the safe. ported at its ends by means-of angle-irons L, bolted to the sides of the safe. To these angleironsare attached the supporting-strips M M, the bar K being hinged to one of these strips, and being prevented from sagging by the tongue N, which enters a recess in the other one. The object in hinging the bar K is to enable the lock to be swung out of the way when the safe-door is opened, thereby giving free access to the interior of the safe. 'Ihe strpsM M should be made with slots, through which to pass the bolts that secure. the strips to the angle-irons L; rlhis will be a safeguard against an explosion or other sudden and heavy shock directed against either side of 'the safe opposite the angle-iron L. ,By reason of these slots the side of the safe might be bulged in to a considerable extent without communicating any serious shock to the lock.

O is a small lock or catch for holding the bar Kin its proper position when the safe-door is locked. l

In Figs. 5 and 6 there is shown in plan and elevation, respectively, a time-lock mounted on a rigid standard, I), detached from the door which the lock is designed to guard. This standard is set at such distance from the adjacent walls that the body of the lock is not exposed to concussion by the inward movements of such walls unless produced by a force sufficient to make an absolute breach therein, and by this isolation of the lock any vibration or shock given to the adjacent walls less than what would be necessary to break them in This bar K is sup- IOO will produce little or no effect upon the lock.

ing will serve to keep the dog in its advanced f' position for work. If, now, at any time a shock should be communicated tothe wall of the safe in front of the lock and be transmitted to the lock-bolt. it would only tend to force such bolt back upon its pivot, (the spring yielding for this purpose,) without materially disturbing the lock itself or the time-movement forming a part of it. An opening in the rear end of the lock-case will Vpermit the heel of the lock-bolt, if necessary, to pass through the case. This construction of the lock-bolt, as, in fact, any other construction which will permit the bolt to give back relatively to the dated December 4, 1877. `1 5 tion,however,is distinguished from Chinnocks l lock and then automatically restore itself, may

be found useful not only when the lock is mounted on a standard, as shown in Fig. 6,

1, u but when it is otherwise mounted in an isoy 5 lated position.

I am aware that heretofore it has been proy posed to isolate the clock-work of a time-lool@ from the doorand door-frame of a safe in orl der to protect it against derangem ent and coni Io sequent stoppage from blows and jarring in- Thisv flicted upon saidpdoor or door-frame. was proposed by Charles E. Chinno'ck in Let ters Patent No. 197 ,S26 of the United States, rIhe present invenin that Ait is now proposed to isolate the lockbolt as well as the clock. In Ohinnock s patent thelock-bolt D of the time-lock and the electromagnet and armature, by means of which it is `2o operated, are all secured directly to the door` of the safe, and therefore are in a situation to `be dislodged' by the force of an explosion of against the exterior of the door.

1 2 5 if these parts should be thus displaced it would dynamite or other similar material placed Manifestly be of no substantial importance that the clock had been placed where it would notbe stopped by a jar or concussion. In no fair sense can itbe said that Ghinnock slock was f isolated, 7

3o or that it was protected against any dei structive shock7 arising` from the use of dynamite, &c., againstthe exterior of the safe. The danger now under consideration is one that was not contemplated by Ohinnock, and against which, therefore, his said patent did not attempt to provide. By isolating the 1 0 ckbolt as well as the clock, as now proposed, se-

curityv is afforded against the new danger which I have discovered.

I do not propose to claim'herein the particular mode of isolating a time-lock, which consists in supporting it behind and independently of the safe-door and upon amovable and its time movement isolated from the door and walls thereof, substantially as and for the purpose set forth.

` -HENRY F. NEWBURY. Witnesses:

R. F. GAYLonn, HENRY EroHLrNG. 

